78793954880 has 112 divisors (see below), whose sum is σ = 195460193280. Its totient is φ = 30220646400.

The previous prime is 78793954879. The next prime is 78793954901. The reversal of 78793954880 is 8845939787.

It is a self number, because there is not a number n which added to its sum of digits gives 78793954880.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044845 + ... + 1117715.

Almost surely, 2^78793954880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78793954880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97730096640).

78793954880 is an abundant number, since it is smaller than the sum of its proper divisors (116666238400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78793954880 is a wasteful number, since it uses less digits than its factorization.

78793954880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73028 (or 73018 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 78793954880 in words is "seventy-eight billion, seven hundred ninety-three million, nine hundred fifty-four thousand, eight hundred eighty".